visitRoot method

@override String visitRoot(RootNode node)

Implementation

@override
String visitRoot(RootNode node) {
  final content = visit(node.content);
  final indexStr = node.index != null ? visit(node.index!) : null;
  if (indexStr != null) {
    return "$indexStr-th root of $content";
  } else {
    return "square root of $content";
  }
}